I am currently studying Practical Electronics for Inventors, Fourth Edition, by Scherz and Monk. Chapter 2.5 Resistance, Resistivity, and Conductivity presents makes the following claim when discussing the concept of resistance:
Ohm's law can be applied only to ohmic materials -- materials whose resistance remains constant over a range of voltages. Nonohmic materials, on the other hand, do not follow this pattern; they do not obey Ohm's law. For example, a diode is a device that allows current to pass easily when the voltage is positive, but prevents current flow (creates a high resistance) when the voltage is negative.
I'm wondering what, if any, relationship there is between this explanation of diodes and the laser diode? The explanation provided is obviously very basic, but how does it, if at all, contribute to the functioning of laser diodes?
I would greatly appreciate it if people would please take the time to clarify this.